Cetus is the chaplain of the 9th. He's a veteran of the Long War, but not one of the original Crusaders. He's neither Terran, nor Colchisian, but was born on a long forgotten world in Segmentum Solar. That's how he escaped the purges, by being non-Terran. That, and the fact that he was clearly marked by the gods very early. His present from is heavily mutated, and borderline obese. He cannot wear any form of power armour, but instead goes around in his self-forged chaos plate armour, like some knight out of a feudal world. He also uses his forge-skills to craft talismans and sorcerous artefacts for his company, something which has endeared him to the men. Sadly his days are numbered. It won't be tomorrow, nor the day after, but someday soon Cetus will complete his descent into darkness and become a spawn of chaos.